The pimples on the face have become black, considering that it is the hyperpigmentation, blackheads and pimples left behind after the pimples have recovered. 1. Hyperpigmentation: If you often squeeze the pimples with your hands, it will cause infection, and it is easy to leave hyperpigmentation after recovery, you can apply hydroquinone cream to improve the symptoms, and if necessary, you can remove the hyperpigmentation with laser, and it is recommended to pay attention to personal hygiene. 2. Blackheads: blackheads are black substances formed after the oxidation of secreted oil, which are formed by the abnormal local development of hair follicles, generally do not need special treatment, can be adjusted through a healthy diet and moderate exercise, etc. If the symptoms are more serious, you can apply Vitamin A acid cream, adapalene gel and other medications, combined with bacterial infections can be orally tetracycline, erythromycin and so on. The pimples on the face become black, there may be other reasons, it is recommended to go to the hospital for a detailed examination, according to the specific causes of standardized treatment, the above drugs should be used in accordance with the doctor’s instructions.